Sorry for wording my comment so weirdly. I just had to look up some phone’s names, since I‘m kinda put of the loop with the new models.
A Samsung Fold like phone I get. It is, like you said, a phone when folded and a tablet when unfolded. I see that being useful.
A phone in the style of a Samsung Flip I don’t get. That’s what I meant with the normal size when unfolded and small, thick square when folded part. It has a tiny screen when folded that barely seems usable. It seems like you get all the faults and none of the benefits with this design.
Excuse my poor wording again.
If you have problems starting the EA laucher (a blank EA launcher colored screen and crashing back to the desktop / your library) this is your fix:
https://steamdeckhq.com/tips-and-guides/fixing-ea-play-blank-screen-for-ea-games-on-steam/
If the game itself doesn’t start, I don’t know how to help, sorry.